Documentation Index

Fetch the complete documentation index at: https://docs.pipeshub.com/llms.txt

Use this file to discover all available pages before exploring further.

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Gemini Text to Speech Configuration

The Gemini TTS configuration screen in PipesHub where you’ll enter your API Key, Model Name, Voice, and Audio Format PipesHub allows you to integrate with Google’s Gemini TTS models to enable voice output in AI workflows and agents. Gemini TTS models offer a wide selection of 30 natural-sounding voices and support multiple audio output formats.

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Required Fields

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API Key *

The API Key is required to authenticate your requests to Google’s TTS services. How to obtain an API Key:

1. Log in to Google AI Studio
2. Click “Create API key”
3. Select or create a Google Cloud project
4. Copy the generated API key

Security Note: Your API key should be kept secure and never shared publicly. PipesHub securely stores your API key and uses it only for authenticating requests to Google.

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Model Name *

The Model Name field defines which Gemini TTS model you want to use with PipesHub. Available Gemini TTS models:

• gemini-3.1-flash-tts-preview - Gemini 3.1 Flash TTS, fast and cost-effective voice generation
• gemini-2.5-flash-preview-tts - Gemini 2.5 Flash TTS, balanced speed and quality
• gemini-2.5-pro-preview-tts - Gemini 2.5 Pro TTS, highest quality voice generation

How to choose a model:

• For fast, cost-effective voice output, select gemini-3.1-flash-tts-preview
• For balanced performance, select gemini-2.5-flash-preview-tts
• For the highest audio quality, select gemini-2.5-pro-preview-tts
• Check Google’s TTS documentation for the most up-to-date options

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Optional Fields

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Voice

Select the default voice used for audio output (default: Kore). Gemini TTS provides 30 prebuilt voices named after astronomical objects. Available voices:

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Audio Format

Select the output audio format for generated speech (default: WAV). Available formats:

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Configuration Steps

As shown in the image above:

1. Click Configure on the Gemini provider card
2. Enter your Google AI API Key in the designated field (marked with *)
3. Specify your desired Model Name (marked with *)
4. (Optional) Select your preferred Voice from the dropdown (default: Kore)
5. (Optional) Select your preferred Audio Format (default: WAV)
6. (Optional) Set a Model Friendly Name — a human-readable label shown in the UI
7. Click Add Model to save and validate your credentials

Both the API Key and Model Name are required fields to successfully configure Gemini TTS integration.

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Usage Considerations

• API usage will count against your Google AI API quota and billing
• Different models have different pricing — check Google AI’s pricing page for details
• WAV and PCM formats require no additional server-side dependencies
• MP3, Opus, AAC, and FLAC require ffmpeg to be installed on your PipesHub backend host

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Troubleshooting

• If you encounter authentication errors, verify your API key is correct and has not expired
• Ensure your Google account has billing set up if you are on a paid tier
• Check that the model name is spelled correctly
• If using MP3, Opus, AAC, or FLAC and audio is not playing, install ffmpeg on the backend host and restart PipesHub
• If you are experiencing rate limits, check your quota in the Google AI Studio dashboard

For additional support, refer to the Google Gemini documentation or contact PipesHub support.